Best AI Agent Memory
8 ai agent memory compared side by side — filter by pricing, open-source availability and API access to find the one that fits your workflow.
8 agents
▲ 4Freemium
Letta
Advancing the frontier of AI systems with memory
▲ 3Free
LangMem
Helping AI agents learn and adapt from interactions over time
▲ 3Free
cognee
Reliable LLM Memory for AI Applications and AI Agents
▲ 2Free
MemGPT
An LLM framework for building autonomous agents with long-term memory and customizable tools.
▲ 2Freemium
AI Drive
Robust cloud storage and advanced file management. Trusted by top universities & 1000+ org
▲ 2Freemium
THEO
MAKE YOUR CURRENT AI ASSISTANT TRULY UNDERSTAND YOUR BUSINESS
▲ 2Freemium
Zep
Memory foundation for AI stacks, enabling personalized agents and assistants.
▲ 1Freemium
Mem0
AI memory layer that enhances LLMs with personalized, long-term context retention